This site intends to present technical proposals on hydraulic steel structures such as hydraulic gates,
intake and discharge equipments, silt/sand dischargers etc. which are provided harbour entrances, docks
and locks along waterways, or dams, weirs, floodgates and power stations on rivers, or irrigation systems.
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A technical proposal on lock gates is under consideration.
Disclosure of the proposal has to be reserved until the patentee's agreement is obtained. Details are as follows.
１．Estimation of Proposed Technology
The result of estimation on the top page is as follows.
（１）This technology is deemed to be satisfactory for a technical proposal. Its reasons are,
1) The maintenance cost is equal to or less than 1/3～1/2 of the ordinary
technology.
2) Reliability is equal to or more than ten times of the ordinary technology.
（２）Still there are risks which prevent the proposal from being realized. Details are as below.
1) Fundamental subjects have been solved. (Fun. Sub.)
2) The patentee's agreement has not been obtained. (Patentee)
3) Interests of the beneficiaries coincide with the proposer's. (Bus. His.)
（３）The engineering level is Ⅱ (Preliminary design).
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